January 2007 in “Dermatologic Surgery” This study presents a new surgical technique that frequently results in minimal scars visible to the naked eye, marking a significant improvement over traditional methods.
EFBL offers hidden incisions, faster recovery, and fewer risks, but may raise hairline and cost more.
This abstract highlights that maintaining healthy, voluminous thin hair involves using gentle care products, such as shampoos, conditioners, and masks containing specific ingredients like hydrolyzed keratin, collagen, and panthenol, to improve manageability, strength, and moisture retention.
63 citations
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October 1972 in “British Journal of Dermatology” Women with thinning hair have thinner hair strands than women without hair loss.
May 2026 in “International Journal of Versatile Research and Analysis” This study used air wedge interferometry to measure the thickness of human scalp hair from three individuals, finding average thicknesses of 66.482 µm, 59.355 µm, and 59.927 µm respectively, within the typical range for adults.
1 citations
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July 2008 in “Expert Review of Dermatology” Normal hair thickness varies by scalp area and a mix of hair thicknesses is typical in healthy individuals.
June 2023 in “Zenodo (CERN European Organization for Nuclear Research)”
2 citations
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October 2022 in “Journal of structural biology” This study found that age-related hair thinning in Caucasian women over 50 involves significant structural changes within the hair follicle, suggesting an "aged hair program" rather than just producing thinner hairs.
1 citations
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January 2017 in “Yonsei Medical Journal” Hair is thinner near the scalp in acute hair shedding conditions.
January 2013 in “Wool textile journal”
2 citations
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March 2017 in “Archives of Plastic Surgery” This study concluded that intense pulsed light treatment effectively thinned hair to achieve a natural look after hairline correction surgery in East Asian women with naturally thick hair.
April 2023 in “Journal of Investigative Dermatology” This study found that an automated tumor-infiltrating lymphocyte classification algorithm identified thin melanomas with less immune response, which were associated with higher mortality compared to other cases in the study.
December 2025 in “Russian Journal of Skin and Venereal Diseases” This study found that in patients with non-cicatricial alopecia, hair follicles and their sheaths were thinner compared to controls, especially in cases of alopecia areata and telogen effluvium, with notable thinning beginning in the subcutaneous fat tissue.
5 citations
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July 2022 in “Frontiers in Medicine” In this study, the combination of ECM-C with microneedle and radiofrequency treatments improved periorbital wrinkles, skin elasticity, and thickness more effectively than ECM-C with microneedles alone, but subjective evaluations showed no significant differences.
September 2025 in “The American Journal of Medical Sciences and Pharmaceutical Research” In this analysis, the authors examine how hairdressing techniques like thinning and micro-graduation can correct women's hairlines by softening optical contours and enhancing visual symmetry, emphasizing the relevance of individual factors such as morphology and stylistic expectations in selecting these non-medical approaches.
September 2025 in “Skin Research and Technology”
January 2011 in “Kufa Medical Journal” This study found that topical minoxidil solution significantly promoted hair growth and increased hair follicle diameter in mice, compared to untreated controls, without affecting hormone levels.
January 2005 in “Seibutsu Butsuri/Seibutsu butsuri” Chemical treatments damage hair more than UV exposure, making it thinner and less flexible.
September 2024 in “Journal of the American Academy of Dermatology” This study found that among 100 Caucasian patients with androgenetic alopecia, dermatologists could discern hair loss at thresholds significantly lower than the previously cited 50% reduction, highlighting the importance of using objective trichometric measurements to improve detection and personalized treatment strategies.
95 citations
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January 2009 in “Journal of Biomedical Optics” This study observed that particles sized 300-600 nm penetrate hair follicles more efficiently, likely due to alignment with the thickness of the human hair cuticula.
10 citations
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June 2019 in “Cosmetics” This study observed that individuals with mixed ethnicity had hair that varied widely in shape and showed significant surface damage near the root, differing from monoracial hair characteristics.
4 citations
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November 2024 in “Anais Brasileiros de Dermatologia” This study reviews current research to better understand how various environmental and lifestyle factors, collectively known as the exposome, impact hair health and aging, acknowledging that the detailed mechanisms remain partially understood.
February 2019 in “American International Journal of Humanities Arts and Social Sciences” This histological study of Millivora Capenesis skin describes the composition of the dermis, featuring distinct papillary and reticular layers with associated structures like hair follicles, glands, and corpuscles.
29 citations
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December 2011 in “British Journal of Dermatology” The researchers reported that a novel leave-on treatment containing caffeine, niacinamide, panthenol, dimethicone, and an acrylate polymer significantly increased the diameter and improved the mechanical properties of scalp hair fibers, suggesting it may help mitigate thinning hair.
4 citations
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November 2016 in “The Journal of Dermatology” This study found that the weak tensile strength of pili torti hair may result from loose keratin intermediate filaments due to abnormalities in disulfide bonds.
December 2019 in “C&EN Global Enterprise” This study found that the internal structure and fracture patterns of hair vary among different mammal species, which could inform the development of keratin-based biomaterials for medical and cosmetic applications.
January 1991 in “Linchuang pifuke zazhi” East and Southeast Asians typically have less dense but thicker, straight black hair.
January 2007 in “한국미용학회지” This study found that a lack of fat tissues in the hair root during the telogen phase might indicate hair loss, potentially providing a standard for identifying hair conditions and the impact of cytotoxic drugs.
23 citations
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October 2021 in “Cell Stem Cell” This study found that hair shaft miniaturization in aging and genetic hypotrichosis leads to hair follicle stem cell loss through mechanical compression and apoptosis mediated by the Piezo1 channel.